Optimization Design of a Dual-Stator Switched Flux Consequent Pole Permanent Magnet Machine With Unequal Length Teeth

The paper deals with the overview of different designs of hybrid excited electrical machines, i.e., those with conventional permanent magnets excitation and additional DC-powered electromagnetic systems in the excitation circuit. The paper presents the most common topologies for this type of machines found in the literature—they were divided according to their electrical, mechanical and thermal properties. Against this background, the designs of hybrid excited machines that were the subject of scientific research of the authors are presented.

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“…The paper shows FEA numerical model of the machine, its structure and the working principle. Similar design is presented in [42].…”

Section: Dual Rotor/stator Machinesmentioning

confidence: 84%

Modern Hybrid Excited Electric Machines

et al. 2020

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“…Meanwhile, the expression for Reynolds's number (𝑁 Re ) is given in (5). Similarly, the friction constant (𝐹 𝑐 ) is calculated using (6), while the torque constant (𝑇 𝑐 ) is estimated using (8). Generally, low speed high torque machines are usually characterized by low efficiency due to its enormous loss profile, especially at high load, as noted in literature [8].…”

Section: Losses and Efficiencymentioning

confidence: 99%

“…Although, the developed dual stator PM machine has admirable fault-tolerance ability; however, it has complicated mechanical assembly and hence, would pose major challenge during the manufacturing processes. Further, a different kind of double stator permanent magnet machine having high flux-controllability aptitude, due to the nature of its implemented field winding topology in the inner stator is proposed in [8]. The developed machine in [8] is an integration of two independent machines; this combined machine has an enhanced torque density compared to a conventional dual stator flux-switching PM machine, owing to the application of consequent pole rotor arrangement on the former.…”

Section: Introductionmentioning

confidence: 99%

“…Further, a different kind of double stator permanent magnet machine having high flux-controllability aptitude, due to the nature of its implemented field winding topology in the inner stator is proposed in [8]. The developed machine in [8] is an integration of two independent machines; this combined machine has an enhanced torque density compared to a conventional dual stator flux-switching PM machine, owing to the application of consequent pole rotor arrangement on the former. However, the proposed high flux-controllability machine could experience higher eddy current loss, owing to the structural pattern of the PMs; since, it is mounted directly on the revolving section.…”

Section: Introductionmentioning

confidence: 99%

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Archives of Electrical Engineering

Awah

2022

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The electromagnetic and output performance characteristics of three (3) different types of double stator permanent magnet machines are quantitatively compared and presented in this study, in order to determine the most promising machine topology amongst the considered machine types, for potential practical applications(s). Two-dimensional (2D) and three-dimensional (3D) finite element analysis (FEA) methods are deployed in the computation of the performance metrics using ANSYS-MAXWELL software. The compared machines in this work are designated as: Machine 1, Machine 2 and Machine 3, respectively. The investigated machines have varying structural arrangements and two separate excitation sources. Machine 1 has its magnets situated in the outer stator with corresponding armature windings on both inner and outer stators. The magnets of Machine 2 are located in its inner stator while it has armature windings on both inner and outer stator parts. More so, Machine 3 is equipped with magnets in its inner and outer stators, though without armature windings on the inner stator section. The considered performance metrics include: inducedelectromotive force (induced-EMF), torque, power, demagnetization, losses and efficiency. The results show that the investigated Machine 3 has higher induced-EMF value and more sinusoidal electromotive force waveform than the other compared machines. Consequently, Machine 3 also has larger electromagnetic torque and power. Moreover, Machine 1 has the best flux-weakening potential, obtained from both the ratio of its maximum speed to base speed and the flux-weakening factor (𝑘 𝑝 ).

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“…Dual rotor/stator machines [14]-the representative of which is the dual-stator-switched flux consequent pole permanent magnet machine (Figure 1f), with an unequal number of teeth. This machine has two stators, the outer and inner stator, and a sandwiched rotor.…”

mentioning

confidence: 99%

Hybrid-Excited Permanent Magnet-Assisted Synchronous Reluctance Machine

et al. 2022

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This paper presents the results of simulation tests of a unique hybrid-excited permanent magnet machine operating in in different working regimes. The common feature of analyzed machine is a presence of magnetic barriers in the rotor structure. Structurally, this machine combines the advantages of the PMa-SynRM machine (Permanent Magnet-assisted Synchronous Machine) and a wound synchronous machine. The paper presents, among other results, the voltage and torque characteristics as a function of the current in the stator and the additional DC control coil. Selected results of experimental studies are also shown.

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Optimization Design of a Dual-Stator Switched Flux Consequent Pole Permanent Magnet Machine With Unequal Length Teeth

Cited by 7 publications

References 9 publications

Modern Hybrid Excited Electric Machines

Modern Hybrid Excited Electric Machines

Archives of Electrical Engineering

Hybrid-Excited Permanent Magnet-Assisted Synchronous Reluctance Machine

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